Chromecast is compatible with Android, iOS, PCs and Macs, which makes it even more attractive to content providers, but for right now it's limited to Netflix and Google's own Google Play and YouTube content, according to the Los Angeles Times. To make Chromecast a success, Google needs more heavy hitters to offer apps and that's where Hulu and HBO could save the day.

"At Hulu, we’re constantly innovating to provide our users with access to their favorite TV shows anytime, anywhere, on any device,” the company told Variety.

HBO said something like it to the entertainment industry newspaper. “We are actively exploring supporting Chromecast as another way for our subscribers to enjoy HBO Go, but at this point we can’t comment on specific plans regarding timing,” a spokeswoman for HBO said to Variety.

Google gaining Hulu would be a bittersweet victory. It spent months, maybe even years, trying to buy Hulu -- its top offer was $4 billion in 2011 -- before the deal fell through. Now with only a $35 dongle, Google may get what it's been waiting years to own.